Motion picture machine



Aug. 11, 1931. w. c. 'READEKER 1,818,355

MOTION PICTURE MACHINE Filed Jan. 8, 1926 INVENTOR M ATTOR EY Patented Aug. 11, 1931 I WILLIAM C. READEKER, OF NEW YORK, N. Y.

MOTION PICTURE MACHINE Application filed January 8, 1926. Serial No. 79,919. v

This invention relates to motion picture the images are projected through the top wall machines, and more particularly'to a simple of the casing or cabinet; and inexpensive means readily adaptable to Fig. 4 is a perspective view of the device; various types of such machines whereby the Fig. 5 is a detail elevation of the lens pictures or images may be projected from the holder, the deflector being omitted, and j cabinet or casing of the projecting mecha- Fig. 6 is a front end elevation thereof. nism in a plurality of angular directions. My present improvements are more par- It is the principal object and purpose of ticularly designed for use in connection with my present invention to provide a deflecting portable motion picture apparatus designed device mounted upon the adjustable lens for use in the home, hospital, or other instituholder and also movable with respect thereto tions, and which is a more or less recent deto operative or inoperative positions whereby velopment in the art. In such machines, the in addition to the normal direction of projecprojecting mechanism is contained within 2. tion of the images through the lens, such suitable casing, housing orcabinet which I images may alsobe pro ected in a plurality have partially illustrated at 5 in the accomof other directions at relatively difi'erent panying drawings. As herein shown, the

. angles with relation to the normal line of front end wall 6 of this casing is provided pro ection. with an opening 7 therein of suitable size and It is also another object of the invention to shape through which the pictures or images provide a very simple and inexpensive may be projected upon a suitable screen. In 7 mounting for the adjustable lens holder addition to the opening 7, either one or both within the casing or cabinet, whereby the side walls of the casin 5 may be provided necessary ad ustment for the projection of with an opening as indicated at 8 while the the images in the desired direction can be top wall of said casing likewise has an openeasily and quickly made. ing 9 therein. With the above and other objects in view, At the rear side of the opening 8 in one of the invention consists in the improved adthe side walls of the casing, a transversely justable lens holder and deflecting means to projectin supporting arm or bracket 10 is be hereinafter more fully described, illussuitably xed at one of its ends. The other trated in the accompanying drawings, and end of this arm is provided with a circular subsequently incorporated in the subjoined opening 11 and at the outer side thereof, said claims. arm is split and the opposed ends provided In the drawings, wherein I have illustrated with radially projecting lugs 12 connected one simple and satisfactory embodiment of by a suitable clamping screw 13.

35 the invention, and in which similar reference The circularopening 11 of the supporting characters designate corresponding parts arm 10 is adapted to receive one end of the throughout the several views,- tubular lens holder 14, the other end of which Figure 1 is a fragmentary longitudinal secprojects forwardly from the arm 10 towards 0 tion through the casing or cabinet of a picthe opening 7 in the front casing wall. By ture projecting mechanism taken substanproperly adjusting the screw 13, the split end tially on the line 1-1 of Fig. 2, and showing of the arm 10 may be caused to tightly clamp the deflector in its normal inoperative posithe lens holder in adjusted position within tion; the opening 11.

Fig. 2 is a transverse sectional view taken The objective lens 15 is suitably mounted in on the line 22 of Fig. 1, the deflector being one end of a sleeve 16, the other endof which lowered to project the pictures or images is provided with a knurled flange 17. This through one side of the casing or cabinet; sleeve is adapted to be fitted within the tubu Fig. 3 is a fragmentary view similar to lar holder 14 and is provided in its will at one Fig. 1 and showing the lens holder after adside thereof with a spiral cam grove 18 in w justment from the position of Fig. 2, whereby which the inner end of a screw 19 threaded in the wall of the holder 14 is engaged. By loosening this screw the sleeve 17 may be rotated within the holder 14, the end of the screw having a caniming action on the walls of the groove 18 to move the sleeve axially in said holder and thereby adjust the lens 15 with relation to the source of light (not shown).

The forwardly projecting end of the lens holder 14 is provided upon its periphery with spaced ears 20. A plate 21 having a rectangular aperture 22 therein is provided on one of its ends and on its opposite sides with angularly projecting lugs 23 which are connected by means of the hinge pintle 24 with the ears 20. A deflector generally indicated at '25 is suitably mounted upon the front side of the plate 21. As herein shown, this deflector consists of a sheet metal member having spaced parallel walls of substantially rectangular form extending from opposite sides of the opening 22 at right angles to the plane of the plate 21. These parallel walls are connected by the obliquely inclined wall 26 having an inner reflecting surface. The triangular shaped walls at their base edges may be provided with flanges 27 secured to the plate 21 by suitable screws 28.

Between the lugs 20 a coil spring 29 surrounds the hinge pintle 24, said spring at one end being fixed to one of the lugs and having its other end suitably attached to the plate 21. This spring normally acts to sustain the deflector 25 in an inoperative position upon the lens holder as shown in Fig. 1 of the drawings. The other end of the plate 21 is adapted to be engaged by a suitable spring catch indicated at 30 when the deflector is swung to its operative position over thelens 15 to retain said deflector in such position against the action of the spring 29.

From the above description of the deflector 25, it will be understood that one side thereof is open while the other side is closed by the deflecting wall 26, and that the light rays projected through the lens 15 striking the inner inclined face of this wall are bent or deflected through the openside of the deflector when the latter is in the position shown in Fig. 4. of the drawings.

When the machine may be conveniently mounted and arranged with the pro ection screen in front thereof the deflector25 is not used and is disposed in its-normal position seen in Fig. 1, so that the pictures or images are projected by the light rays through the objective lens 15 and through the opening 11 in. the front wall of the casing or cabinet.

In some instances, however, it may be pos- B arranged in front of themachine, but it is sible that the screen cannot be mounted or necessary to position the same at one side i thereof.

In such cases the deflector 25 is swung downwardly and inwardly against the action of spring 29 and held in position over the lens by the spring catch 30. Thus, as above stated, the light rays will now be bent or deflected by the inclined wall 26 of the deflector and projected through the opening 8 in one side wall of the casing and upon the screen spaced from said wall. If the screen is arranged at the opposite side of the casing or cabinet, it is only necessary to rotate the lens holder and deflector in the end of the bracket arm 10 through 180 degrees from the position shown in Fig. 2 of the drawings, so that the pictures or images will then be projected through the opening in the opposite side wall of the casing.

In the use of such portable picture projecting machines in hospitals and other institutions, it frequently occurs that the patient cannot, owing to physical disability assume a sitting posture. Nevertheless entertainment may be afforded such patients, as by means of my invention the pictures or images can be projected upon the ceiling of the room. Thus, it is only necessary to rotate the lens holder and deflector through an arc of 90 degrees from the position shown in Fig. 2, to the position illustrated in Fig. 3 of the drawings, whereby the light rays and therefore the pictures or images are deflected upwardly through the opening 9 in the top wall of the casing or cabinet.

From the foregoing description considered in connection with the accompanying drawings, the construction, manner of use and several advantages of my present improvements will be thoroughly understood. It will be seen that by means of a very simple device, I am enabled to project the pictures in a plurality of different directions angularly related to each other, which is capable of easy and quick adjustment for the projection of imagesor pictures in the selected direction, as the particular condition of each case might require. It will be understood that the manner of adjustably securing the lens sleeve in the holder 14 is not an essential part of my present improvements, and various other means for mounting a lens in said holder might be adopted. Likewise, while I have herein referred to a simple and convenient means for adjustably supporting the lens holder and the deflector, this feature also may be susceptible of considerable modifications. Similarly, although I have in my present disclosure described a preferred construction and mounting of the deflector upon the lens holder, it may also be possible to embody this feature of my improvements in various other alternative structures and accordingly,'it is to be understood that in practice I reserve the privilege of resorting to all such legitimate changes in the form, proportion and relative arrangement, of the several parts which may be fairly embodied within the spirit and scope of the invention as claimed.

holder, means for mounting said lens holder for rotative adjustment in coaxial relation with one of said openings, a deflector pivotally mounted upon the lens holder and movable with respect thereto into intersecting relation with the light rays projected through the lens, said lens holder adapted to be adjusted with the deflector in the latter position to deflect the light rays through a selected opening in one of the other walls of the casing, and means for normally sustaining said deflector yieldingly in an inoperative position on the lens holder to permit of the projection of the light rays through said first named opening,

2. In combination with a casing for motion picture apparatus, said casing having angularly related walls each provided with an opening through which the pictures or images are adapted to be projected, a supporting arm fixed to one of the casing walls adj acent the opening therein, a lens holder rotatively adjustable in said arm in coaxial relation with the opening in another wall of the casing, a deflector" pivotally mounted upon said lens holder and adapted to be moved with respect thereto into intersecting relation with the light rays projected through the lens, and said lens holder and deflector be in g adjustable relative to the support to thereby deflect the light rays through a selected opening in one of the other walls of the casing, and a spring yieldingly sustaining said deflector in an inoperative position upon said lens holder.

3. In combination with a lens holder for picture projecting apparatus, a deflecting member, means for adjustably mounting said member upon the lens holder for movement into or out of the path of the light beam in advance of the lens, and a common supporting means for the lens holder and said deflecting member permitting of the ad ustment of said member in a path concentric to the lens to selectively position its deflecting surface in any one of a plurality of planes traversing the path of the light beam,'to bend the light beam and project the same in a predetermined direction relative to the lens axis.

4. In combination with a lens holder for picture projecting apparatus, a deflecting member pivotally mounted on the lens holder for movement into and out of operative position with respect to the lens and having a deflecting surface traversing the path of the light beam in oblique angular relation. to the lens axis when said member is in operative position to bend the light beamand pro ect the same in a predetermined direction, and means for yieldably retaining said member in a normal inoperative position uponthe lens holder.

5. In combination with a lens holder for picture projecting apparatus, a deflecting member pivotally mounted on the lens holder for movement into and out of operative position with respect to the lens and having a deflecting surface traversing the path, of the light beam in oblique angular relation to the lens axis when said member is in operative position to bend the light beam and project the same in a predetermined direction, means for supporting said lens holder and the deflecting means for rotative adjustment about the axial center of the lens to position the deflecting surface of said member in a predetermined plane across the path of the light beam, and means for yieldably retaining said member in a normal inoperative position upon the lens holder.

In testimony that I claim the foregoing as my invention, I have signed my name hereto.

WILLIAM C. READEKER. 

